I have a V4 board with KD8CEC software on the Arduino and a 2.8" Nextion screen. This has been working well but I wished to have a larger screen as the case can accomodate a 3.5" one. Having purchased

mic: Updated the R63 with a 10ohm in parallel. at least no need to shout for now. will try next to improve the mic with a compressor/amp replacing the speaker in the case.

Hi, Assuming you didn't mess up the blue and yellow wires... perhaps a mismatch between Nextion screen versions and KD8CEC? Believe the current release s 1.2 (or 1.1+)? 73 Mark

I have found a work around, I had previously added a relay to key an external amplifier. I used one of the original relays that I replaced with the Axicom relay. I put the audio line on the unused

Anybody can help me in purchasing USED TUNER low power working type (upto 100 Watts) ? Email bsnvu2yc73s@...

Never mind. It was an easy photoshop change. All done! More screens to do.... 73 Mark

Hi everyone. It's that time again.... Opened sunil case w/ v4 board to add audio amp. Removed audio pin 7 to the front input board and brought audio to amp from d16. Hooked internal speaker to amp and

Not too clear what you did as I have not used Sunils case. Sometimes the culprit in such case is the EP socket. Some plugs have a different tip shape and may damage the contact inside the socket. If

Found the reference.... WA2EBY. Take a look at: http://www.golddredgervideo.com/kc0wox/wa2ebyamp/ (pointer to availability of boards) and

Hi Mark, Thx very much for your reply.Double checked everything and still no joy.The 4 pin connector as supplied with the screen was used and delivered power to the display but the blue wire had been

The WA2EBY is a great little qrp amp. I built one and love it, finding some of the boards might be tough but its a great amp. Try Taydaelectronics for a Fan the sell some nice little ones I use

What type of amp are you using. I remember using a type-d with my sota beams filter and needed to keep the GND isolated from radio/earth gnd. Maybe try the audio jack when its not attached to the

David and Raj, thanks. I already tried both of your suggestions. I'm using Sunil's audio amp. I removed the amp and reverted to just the standard ubitx setup, and I have no audio... even at the

I assume those front panel jacks are not grounding to the case? The early (smaller) Sunil cases attached the bottom handle right under that front board and it would ground out. I had to get my dremel

I dremeled and grounded all metal contacts to the front case.

Vaughn, A brush-less fan is normally low on radiated EMI and is more likely problematic on conducted EMI (e.g. EMI current in the power and ground wires) There can be EMI radiated from the power /

N8DAH, Boards are easy for the EBY amp. FARCircuits has them. Its a good design and allwos for getting good performance at higher frequencies. Mine with a little effort does 37W on 10M (1.8W drive)

Even Sunil vu3sua sells set of pcbs for EBY . BLACK MASKED PCBS.

HERE IS the related link https://amateurradiokits.in/product/hf-linear-amp-40-watts/

Love solutions like this! Usually, i blow a transistor or something. :-) 73 Mark